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Certus Reference Manual • Using Certus
7.5.2 3D Magnetic Calibration
The following procedure should be used to perform a 3D magnetic calibration.
7.5.2.1 3D Magnetic Calibration Using the web UI or Certus Manager Software
1. The unit should be powered on and the vehicle kept stationary. It is recommended this be done in an out-
door area away from metal or obstructions.
2. After power on wait 5 minutes for the temperature and filter to stabilise.
3. Open the web UI or Certus Manager and connect to the device. Ensure that the device has a GNSS fix
before proceeding.
4. In the Tools menu, open Magnetic Calibration. Click the 3D Calibration button. The following steps 5,
6 and 7 can be performed in any order.
5. Slowly rotate the vehicle twice around the X-axis (roll).
6. Slowly rotate the vehicle twice around the Y-axis (pitch).
7. Slowly rotate the vehicle twice around the Z-axis (heading).
8. Check the status in the Magnetic Calibration window to ensure that the calibration completed suc-
cessfully. If not successful click Cancel, wait 2 minutes and repeat from step 4. Do not press the save but-
ton in the lower half of the page, this will over write the new calibration values. The auto-generated
calibration values are automatically saved internally by Certus.
7.5.2.2 3D Magnetic Calibration Using the Packet Protocol
1. The unit should be powered on and the vehicle kept stationary.
2. After power on wait 5 minutes for the temperature and filter to stabilise.
3. Ensure that the device has a position fix, either from a GNSS receiver, or using the External Position and
Velocity packet #44 or the External Position packet #45, before proceeding.
4. Send the
10.5.9 Magnetic Calibration Configuration Packet
Calibration. The following steps 5, 6 and 7 can be performed in any order.
5. Slowly rotate the vehicle twice around the X-axis (roll).
6. Slowly rotate the vehicle twice around the Y-axis (pitch).
7. Slowly rotate the vehicle twice around the Z-axis (heading)
8. Read the
10.5.10 Magnetic Calibration Status Packet
successfully. If not successful, send the
action Cancel, wait 2 minutes and repeat from step 4.
7.5.3 Automatic Magnetic Calibration
Automatic magnetic calibration is an algorithm that continuously and automatically calibrates for static magnetic
interference. Automatic magnetic calibration is enabled by default and it is recommended to keep it enabled for
all vehicle types. When used on top of a 2D or 3D calibration it can give the best results from magnetic heading.
The automatic calibration for 2D vehicles differs from that for 3D vehicles. To ensure the correct calibration is
being applied, ensure the correct vehicle profile is selected for your application in the
page in the web UI or the
v2.4
10.5.9 Magnetic Calibration Configuration Packet
8.2.7.3 Filter Options
with the action Start 3D Magnetic
to ensure that the calibration completed
dialogue in the Certus Manager.
Page 45
with the
8.1.3.2 Filter Options
2024-12-17
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